Cellular Network Infrastructure » Core Network (CN) » OsmoCBC

OsmoCBC » History » Revision 3

Revision 2 (laforge, 09/13/2019 07:56 PM) → Revision 3/13 (laforge, 09/13/2019 08:44 PM)

{{>toc}} 

 h1. OsmoCBC 

 This is the upcoming Osmocom Cell Broadcast Centre.    Work has just started, stay tuned. 

 h2. Introduction 

 You can find more information about Cell Broadcast in general at [[cellular-infrastructure:Cell_Broadcast]] and [[cellular-infrastructure:Service_Area_Broadcast]], as well as [[cellular-infrastructure:Emergency_Warning]] and [[cellular-infrastructure:Public_Warning_System]]. [[cellular-infrastructure:Service_Area_Broadcast]].    The pages include pointers to the relevant specifications. 

 h2. Position in the network 

 The below graph shows the CBC in the network. 

 {{graphviz_link() 
 digraph G { 
   rankdir = RL; 
   CBC [color=red]; 
   CBE -> CBC [label="REST/JSON"]; 
   CBC -> BSC [label="CBSP"]; 
   CBC -> RNC [label="SABP"]; 
   CBC -> MME [label="SBc-AP"]; 

   BSC -> BTS [label="A-bis RSL"]; 
   RNC -> NodeB [label="Iub"]; 
   MME -> eNodeB [label="S1-AP"]; 

   BTS -> UE [label="CBCH"]; 
   NodeB -> UE [label="BMC/CTCH"]; 
   eNodeB -> UE [label="SIB10/11/12"]; 

 } 
 }} 

 As can be seen, the CBC receives messages from third-party applications (called CBEs). It then routes/distributes/forwards those messages over the respective radio access technology specific method.